Epping is located 18 kilometers north west of the Sydney central business district; it is under the local area government of the City of Ryde, the City of Parramatta and the Hornsby Shire and is part of the Northern Suburbs.
The aboriginal Wallumedegal tribe lived in the area between the Lane Cover and Parramatta Rivers. Governor Phillip began giving parcels of lands to marines in 1792 and on Phillips maps the area was referred to as the Field of Mars after Mars the god of war. It contained the area of present day Epping along with Marsfield and Ryde.
The first post office opened here as East Carlingford, but in 1899 the name Epping was adopted after being suggested by local landowner William Midson after a town near Epping Forest in Essex where his father had been born. There is a small shopping centre close to Epping Railway Station with other commercial and industrial developments located in the surrounding area.